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couchdb.php
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couchdb.php
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<?php
// See CouchDB wiki
class CouchDBResponse {
private $raw_response = "";
private $headers = "";
private $body = "";
function __construct($response = '') {
$this->raw_response = $response;
list($this->headers, $this->body) = explode("\r\n\r\n", $response);
}
function getRawResponse() {
return $this->raw_response;
}
function getHeaders() {
return $this->headers;
}
function getBody($decode_json = false) {
return $decode_json ? CouchDB::decode_json($this->body) : $this->body;
}
}
class CouchDBRequest {
static $VALID_HTTP_METHODS = array('DELETE', 'GET', 'POST', 'PUT');
private $method = 'GET';
private $url = '';
private $data = NULL;
private $sock = NULL;
function __construct($host, $port = 5984, $url, $method = 'GET', $data = NULL) {
$method = strtoupper($method);
$this->host = $host;
$this->port = $port;
$this->url = $url;
$this->method = $method;
$this->data = $data;
if (!in_array($this->method, self::$VALID_HTTP_METHODS)) {
throw new CouchDBException('Invalid HTTP method: ' . $this->method);
}
}
function getRequest() {
$req = "{$this->method} {$this->url} HTTP/1.0\r\nHost: {$this->host}\r\n";
if ($this->data) {
$req .= 'Content-Length: ' . strlen($this->data) . "\r\n";
$req .= 'Content-Type: application/json' . "\r\n\r\n";
$req .= $this->data . "\r\n";
} else {
$req .= "\r\n";
}
return $req;
}
private function connect() {
$this->sock = @fsockopen($this->host, $this->port, $err_num, $err_string);
if (!$this->sock) {
throw new CouchDBException('Could not open connection to ' . $this->host. ':' . $this->port. '(' . $err_string . ')');
}
}
private function disconnect() {
fclose($this->sock);
$this->sock = NULL;
}
private function execute() {
fwrite($this->sock, $this->getRequest());
$response = '';
while (!feof($this->sock)) {
$response .= fgets($this->sock);
}
$this->response = new CouchDBResponse($response);
return $this->response;
}
function send() {
$this->connect();
$this->execute();
$this->disconnect();
return $this->response;
}
function getResponse() {
return $this->response;
}
}
class CouchDB {
function __construct($db, $host = 'localhost', $port = 5984) {
$this->db = $db;
$this->host = $host;
$this->port = $port;
}
static function decode_json($str) {
return json_decode($str);
}
static function encode_json($str) {
return json_encode($str);
}
function send($url, $method = 'get', $data = NULL) {
$url = '/' . $this->db.(substr($url, 0, 1) == '/' ? $url : '/'.$url);
$request = new CouchDBRequest($this->host, $this->port, $url, $method, $data);
return $request->send();
}
function get_all_docs() {
return $this->send('/all_docs');
}
function get_item($id) {
return $this->send('/' . $id);
}
function create($doc) {
return $this->send('', 'post', $doc);
}
function update($id, $doc) {
return $this->send($id, 'put', $doc);
}
}
class CouchDBException extends Exception {
public function __construct($message, $code = 0) {
parent::__construct($message, $code);
}
}
?>